The Huffington Post is taking on more of the trappings of a social network. Borrowing from Foursquare, today it will start giving out badges to loyal readers who share a lot of HuffPost stories via Facebook and Twitter (the Networker), comment like crazy (the Superuser), or flag inappropriate comments (the Moderator). The site also redesigned its user profile page to better highlight each user's comment stream, and her friends, fans, or followers. Last summer, the site launched its HuffPost Social News network , allowing readers to log in with their Facebook IDs, and friend, fan, and follow each other on the site. It later added Twitter, Google, and Yahoo as login options. "We want to incorporate the best of social media," Arianna Huffington tells me. "It is important for the growth of the site so far, and even more important for the future growth."